Been using a fold up Flambeau for 15-17 years, nephew has had bucks bulldoze his Montanas before daylight, buddy made a fold up plywood one based on mine and very rarely does anyone NOT use one. Doe's will be a little skittish but still come and it gives a buck a reason to come out in the open. I have had 2 trophy bucks posturing at 20 yds and only doe tags left
This past fall's buck the setup was the decoy set broadside to a swamp 100yds out, wind blowing into that edge. Me set up 120-150 yds from trails. 1.5hours before dark, 7 pointer comes out of the swamp on a beeline to the decoy. he didn't quite make it 40 yds out of the swamp before a neck shot ended the season.